Blue Controlled Bubble Murano Glass Ashtray

Gorgeous blue controlled bubble Murano glass ashtray. Excellent condition - no chips or cracks and the pontil bottom is polished. Most of the bubbles are in controlled position however there is a large bubble in the center (see picture). This effect is obtained by placing a piece of molten glass inside a metallic mold with spikes. These spikes cause small holes on the surface creating a pattern all around the glass piece. After it’s been left to cool down, the whole piece is submerged in molten glass again. This second layer completely covers the first one. However, thanks to the thick consistency of glass, the holes previously impressed on the first layer are not covered, thus causing air to be trapped between both layers of glass. Measures 6.5" x 7" x 2.5" high. Weighs 2 lbs. 9 oz.